CN101495315B - Inking unit of a rotary press, comprising a film roller - Google Patents

Abstract

The invention relates to an inking unit for a rotary printing press with an oil-film inking roller, wherein the oil-film inking roller has a structured outer shell surface, wherein the outer shell surface of the oil-film inking roller has a hardness in the range of 80 to 90 In the range of Shore D, wherein the shell surface of the oil film ink transfer roller has a random structure, wherein the random structure is introduced into the shell surface of the oil film ink transfer roller by shot blasting.

Description

Inking unit for rotary printing press with oil film transfer roller

technical field

The invention relates to an inking unit for a rotary printing press with an oil film transfer roller according to the preamble of claim 1 . the

Background technique

JP 2005 271407 A has known a kind of inking device of rotary printing machine with oil film transfer roller, wherein said oil film transfer roller has shell surface, and described shell surface has by 11-polyamide/12 polyamide or copper composition coating. the

GB 729 561 A known a kind of ink roller of printing press, described ink roller has the random structure that forms on its shell surface, and wherein said random structure is made by shot peening. the

DE 44 39 144 C2 known a rotary printing machine inking unit, it has a ink fountain roller that gets ink from the ink storage device and a plurality of ink form rollers that apply ink to the cylinder of the printing unit, wherein the The ink flow of the ink fountain roller is divided into a main ink flow and an ink distribution roller of a side ink flow, wherein in each of the main ink flow and the side ink flow there is arranged a cross-ink roller which conveys ink from the ink distribution roller to at least one ink form roller. The roller row between the ink fountain roller and the ink distribution roller consists of 4 rollers arranged in a row, so the roller row is relatively long, so that when the ink form roller is to apply a well-defined amount of ink to the printing unit cylinder, when the roller The rollers arranged next to the fountain rollers in the column are coated with a relatively thick layer of ink. After each gap position between two adjacent rollers that transport ink, although the ink layer on the rollers arranged next to the gap position is thinner, at least 4 rollers adjacent to the ink storage device The layers of ink on the first roller in the process will inevitably be thicker due to the multiple gap positions distributed to the cylinder of the printing device, which will lead to more serious ink mist just for rotary printing machines with higher operating speeds. the

WO 2004/024451 A1 known a rotary printing machine inking unit, it has an ink fountain roller that takes ink from the ink storage device and a plurality of ink form rollers that apply ink to the cylinder of the printing unit, wherein the ink from the ink fountain is arranged. The ink flow of the roller is divided into the main ink flow and the ink distribution roller of the side ink flow, wherein in the main ink flow and in the side ink flow, respectively, there are arranged the cross-ink rollers which convey the ink from the ink distribution roller to at least one ink form roller, where the input The ink in the roller column is directly applied to the ink splitting roller through the chamber doctor blade. Here, the ink distribution roller is designed as an anilox roller. Such short inking units do not have a mechanism for distributing ink volumes by area and are only suitable for use in conjunction with a waterless lithographic process without adding a dampening agent. the

It is known from DE 10 2004 004 665 A1 that the rollers of the inking unit and/or the dampening unit are respectively provided with a device by means of which a remote controllable radial movement of the rollers can be implemented, for example for adjusting the pair of adjacent rollers. The extrusion force of the rotating body. the

DE 10 2004 037 889 A1 discloses a device for supporting a cylinder of a printing unit, said device having a bearing seat with a rotary bearing movable along an adjustment path in a linear bearing, wherein the bearing structure is designed to be able to Bearing unit in the form of a mounted composite part, the bearing structure comprising, in addition to the swivel bearing, two cooperating bearing elements which enable a relative movement of the bearing housing. the

DE 27 23 582B has known a kind of ink roller, and it has and is designed as sleeve, is made of the housing part of microporous elastic material, and wherein forms a large amount of cavities in the housing part such as being made of foam rubber, wherein The cavities essentially have different dimensions within a defined dimension range, wherein the ink roller is used to prevent centrifugal ink mist, especially at higher peripheral speeds of at least 305 m/min. scattered. the

DE 30 04 295 A1 known a fluid roller with a hard surface, wherein the outer surface of a cylindrical core is coated with a hard metal layer, such as a hard metal layer consisting of less than 0.5 mm thick chromium, wherein in said Etching in the layer forms a random pattern of interconnected slits and islands spaced between the slits, wherein the slits may occupy 30% of the surface of the fluid roll, wherein the slits have a thickness of less than 0.075mm The depth of wherein the fluid roller cooperates with another roller for conveying fluid, wherein the other roller has a softer shell surface, and wherein the two rollers are positioned opposite each other. the

US 45 37 127A discloses an ink roller made of steel, the surface of the outer shell of which is cellularly patterned by mold cavities preferably having crossing lines, undergoes surface hardening by nitriding and then oxidation, wherein the outer shell of the roll The oxidation treatment carried out on the surface forms an outer layer mainly composed of Fe ₃ O ₄ .

DE 10 2004 040 150 A1 discloses a printing unit with an inking unit having at least one ink diverting roller, wherein in the inking unit a fountain roller that draws ink from the ink reservoir and an ink fountain roller Only one roller is arranged between the ink splitting rollers, wherein the roller is designed as an oil film ink transfer roller, wherein the outer surface of the oil film ink transfer roller has a structure. the

DE 69 10 823 U known a kind of oil film ink transfer roller for rotary printing press inking unit, wherein said oil film transfer ink roller has the surface with thin hard rubber layer, and wherein said hard rubber layer has Shore hardness 80 to 85°. the

DE 10028478 A1 discloses a method for producing an anilox roll, preferably composed of steel, which has small pits on its surface, wherein the small pits are preferably produced by shot blasting. The disadvantage of the described anilox rollers is that the outer shell surface made of steel can lead to failures in the ink delivery, especially in wet lithographic printing processes after a short running time, since such outer shell surfaces tend to run to no avail very quickly. Ink status. the

Contents of the invention

The purpose of the present invention is to propose a rotary printing machine inking device with an oil film ink transfer roller, wherein the inking device is not easy to wear when the conveying speed of the printing material printed in the rotary printing machine is greater than 10m/s, and rarely Causes ink misting and helps produce prints with higher print quality. the

This object is achieved according to the invention by the features of claim 1 . the

The advantages that can be achieved by the present invention are in particular that, under the conditions of use where the rotary printing press runs at a relatively fast speed and the conveying speed of the printing material to be printed is greater than 10 m/s, it has a hardness of at least 60 Shore D, preferably greater than 70. Shore D, especially the oil film ink transfer roller with a shell surface with a hardness in the range of 80 to 90 Shore D, compared to the commonly used oil film ink transfer roller (such as an oil film ink transfer roller with a shell surface containing a hard rubber layer) Less prone to wear and tear. The reason is that the rubber material cannot reach the high hardness value of the above-mentioned oil film ink transfer roller shell surface. In order to create a wear-resistant housing surface for the above-mentioned conditions of use, it is advantageous to choose polyamide or polyacrylate or copper as the material of the housing surface, since these materials are distinguished by their high resistance to wear and aging , where these materials also have very good ink absorption and ink release characteristics due to their ink affinity. It is particularly advantageous to use Rilxan, a polymer made of 11-aminoundecanoic acid (Rilxan B, PA11) or ω-azacyclotridecane-2-one (Rilxan A, PA12). Amides, wherein the polyamide material has a hardness of at least 60 Shore D, preferably greater than 70 Shore D, wherein particularly high hardness values can be achieved by reinforcing the relevant polyamide material with glass fibres. It is worth noting that there is a very high peripheral speed difference between the ink fountain roller and the ink distribution roller in the inking device, so that the outer shell surface of the oil film transfer roller arranged between the ink fountain roller and the ink distribution roller will be subject to greater pressure. High mechanical loads and possibly also high thermal loads. the

Therefore, it is advantageous to form the outer surface of the oil film roller with a random structure, because the oil film roller with the outer surface of the random structure has very favorable ink transfer characteristics, which contributes to the high quality production of printed products. Furthermore, the proposed form of introducing a random structure to the surface of the oil film transfer roller is very advantageous, since shot blasting is a very cost-effective process. the

The advantage is also that, due to the short roller row that feeds the ink to the printing unit cylinders, i.e. the small number of ink gap positions, the ink fountain rollers only have to be taken from the ink storage unit in order to supply the required ink volumes for the printing unit cylinders A relatively thin layer of ink is applied to the roller after the fountain roller. Therefore, the ink layer on the roller that mainly causes ink mist (that is, especially on the oil film ink transfer roller) is relatively thin, so that the proposed inking device can be used even at the conveying speed of the printing material printed by the rotary printing machine. It is also not easy to produce ink mist when used in a fast-running rotary printing machine greater than 10m/s. the

The features proposed for the oil film transfer roller thus achieve a high durability and very good ink transfer characteristics when used in fast-running rotary printing presses with at the same time less ink misting and manufacturing Oil film ink transfer roller with relatively low cost. the

Another advantage is that the proposed inking unit reacts quickly during the running production process to adjustments of the ink dose, for example in one or more ink zones, due to the short roller train, so that it is possible to reduce The number of waste pages generated before a new ink supply is steadily provided. the

In addition, it also has the advantage that with the proposed inking unit only a relatively small amount of ink is stored in its relatively short roller row, so that the cleaning inking time can also be kept short. The cleaning time generated by the device. Shorter cleaning times in particular meet the higher demands of customers in newspaper printing with regard to shorter settling times, since the cleaning time is part of the settling time. the

As proposed here, a front-loaded inking unit with a plurality (for example at least 3) of inking rollers on the printing unit cylinder against which said inking rollers abut, or at least one is arranged on said printing unit cylinder A uniform ink spread is produced on the printing plate, which is a key criterion for the quality of the prints produced in a printing press with such a printing unit. Conventional newspaper printing presses have hitherto generally only had 2 ink form rollers. And the uniform adjustment of the ink coating with 3 ink form rollers is better than only 2 ink form rollers. 3 inking rollers also adjust the stencils formed in their respective ink films more evenly, so that an inking unit with 3 or more inking rollers is less prone to stenciling. Generating stencil is understood to be the repeated, undesired image of the part of the printed image preceding it in the printing direction of the cylinder of the printing unit in the form of a shadow, which is colored with a higher or lower coloration compared to the surrounding environment. show up. The generation of the stencil is influenced by the ink distribution in the inking unit, in particular by the ink distribution on the ink form roller. If the previously printed ink profile is not sufficiently eliminated (i.e. evenly adjusted) by image-based ink separation before the next coloring (inking form roller is turned), an already printed Partial transfer of image parts. the

In addition, the quality of the prints produced by the inking unit can be improved by a radially displaceable arrangement of at least the oil film transfer roller and/or the ink distribution roller and/or the inking roller in the inking unit, since the inks produced by the inking unit The pressing force exerted by the rollers can be adjusted and can be supplemented as required, whereby the ink delivery can be controlled and thus optimized by means of this adjustment. the

Description of drawings

Exemplary embodiments of the invention are explained in detail below with the aid of the drawings. in,

Figure 1 Part of the printing unit, with inking unit and dampening unit;

Fig. 2 part of the printing unit as shown in Fig. 1, with the bearing structure of the printing unit cylinder and with the adjustment devices on the different rollers, wherein the roller row is closed respectively;

Fig. 3 is a part of the printing unit as shown in Fig. 1, with the bearing structure of the printing unit cylinder and with the adjustment devices on the different rollers, wherein the roller rows are respectively separated by gaps;

Figure 4 is a cross-sectional view of the bearing element of the cylinder of the printing device;

Fig. 5 has the printing tower of the printing press of a plurality of structures as shown in Fig. 1 to Fig. 3, is in the first running state;

Fig. 6 The printing tower shown in Fig. 5 is in the second operating state;

Fig. 7 is the printing tower shown in Fig. 5, and its printing device does not have wetting device, is used for implementing non-horizontal printing process;

Fig. 8 is the printing tower shown in Fig. 5, respectively having a printing plate magazine arranged on each printing plate cylinder. the

Detailed ways

FIG. 1 shows an example of a part of a printing unit of a rotary printing press. In the illustrated embodiment, the rotary press operates in a wet lithographic process. The rotary printing press is used in particular for newspaper printing. The printing unit has at least one transfer cylinder 01 and a forme cylinder 02 cooperating with the transfer cylinder 01 as printing unit cylinders 01 ; 02 . With each rotation of the transfer cylinder 01 , at least one printed image is produced on a printing material (not shown), preferably on a material web, in particular on a paper web. In the operating state of the printing unit as shown in FIG. 1 , at least one inking unit and dampening unit are arranged next to the plate cylinder 02 . the

The inking unit has a plurality, preferably at least three, of inking rollers 03 ; 04 ; 06 , which abut against the plate cylinder 02 during the production process of the rotary printing press in operation. A plurality of rollers 09 ; 11 ; 12 ; 13 are arranged between the fountain roller 08 , which takes ink from the ink reservoir 07 , and the ink form roller 03 ; 04 ; 06 , which applies ink to the plate cylinder 02 . The roller 09 arranged next to the ink fountain roller 08 in the ink conveying direction is designed as an oil film transfer roller 09 . Furthermore, a roller 11 designed as an ink splitter roller 11 is arranged downstream of the oil film transfer roller 09 in the direction of ink transport, which splits the ink flow A coming from the ink fountain roller 08 into the main ink flow B and the ink flow B. Side ink flow C. In FIG. 1 , the flow direction of the main ink flow B directed to the printing plate cylinder 02 is indicated by a solid line, and the flow direction of the side ink flow C also directed to the printing plate cylinder 02 is indicated by a dashed line. In the main ink flow B and in the side ink flow C, respectively, a roller 12; 13 for conveying ink from the ink distribution roller 11 to at least one inking roller 03; 04; 06 is arranged, wherein the rollers 12; 13 are respectively designed as String ink roller 12; 13. The two string ink rollers 12; 13 implement reciprocating lifts extending in their axial directions respectively, wherein the reciprocating lift of one string ink roller 12 can be connected with the reciprocating lift of the other string ink roller 13, for example, through a lever structure. In an alternative embodiment, the to-and-fro lifting and lowering of the individual inking rollers 12; 13 is produced by mutually independent drives. The two reciprocating lifts can be designed to move in opposite directions for the two drive forms. The reciprocating lift of the individual strings of ink rollers 12 ; 13 can be produced, for example, from a rotational movement by means of a transmission. Regardless of whether it is in the main ink flow B or in the side ink flow C, the ink obtained from the ink storage device 07 is obtained by means of five adjacent rollers 08; 09; 11; 12; 13; The roller column is applied to the printing plate cylinder 02, where the ink fountain roller 08, the oil film ink transfer roller 09, the ink splitter roller 11, the string ink roller 12; one of the string ink rollers in 13 and one of the ink form rollers 03; 04; 06 The ink form rollers are in each case a component of the respective roller row leading to the plate cylinder 02 . Only one roller 09 is arranged in the roller row between the ink fountain roller 08 and the ink distribution roller 11, wherein the roller 09 is designed as an oil film ink transfer roller 09, wherein the oil film ink transfer roller 09 has specificity, which will be elaborated on later. the

The main ink stream B represents the part of the ink stream A originating from the ink ductor roller 08 from which ink is taken from the ink diverter roller 11 in the direction of rotation of the ink ductor roller 11 and which is first passed through and arranged in said main ink stream B The ink stream delivered by the string ink roller 12 to the direction of the printing plate cylinder 02. The side flow C of the ink taken from the ink reservoir 07 represents the part of the flow A originating from the ink fountain roller 08 that flows from the ink distribution roller 11 after the main ink flow B in the direction of rotation of the ink distribution roller 11 An ink stream that picks up ink and conveys it in the direction of the plate cylinder 02. If several, in particular two, ink form rollers 03 ; 04 ; 06 are arranged on the inking roller 13 arranged in the side ink flow C, said side ink flow C can be subdivided into the partial ink flow D;E again. Since the main ink flow B of the ink flow A originating from the ink fountain roller 08 first reaches the printing plate cylinder 02 in the direction of rotation of the printing plate cylinder 02, that is at least spatially prior to the side ink flow C and its sub-ink flow D; E reaches Plate cylinder 02, this type of inking unit is called front loading. The ink conveyed in the side stream C of the ink stream A originating from the ink fountain roller 08 is applied to the plate cylinder 02 , which is precolored, for example, by the main ink stream B. The inking rollers 04 ; 06 associated with the side ink stream C and its partial ink stream D; E also effect the flattening of the portion of ink applied to the printing plate cylinder 02 in the main ink stream B. Such an inking unit produces a uniform ink coloration on the forme cylinder 02 to be colored. If the main ink flow B of the ink flow A from the ink fountain roller 08 is applied to the printing plate after the side ink flow C and its sub-ink flow D on the printing plate cylinder 02 in the direction of rotation of the printing plate cylinder 02; On cylinder 02, this type of inking unit is called afterloading. the

The ink storage device 07 (from which the ink fountain roller 08 acquires the ink delivered to the plate cylinder 02) is designed as an ink tank 07 or an ink fountain 07, wherein on the ink tank 07 or the ink fountain 07 in the axial direction of the ink fountain roller 08 A plurality of, such as 30 to 60, ink blades (not shown) are arranged side by side, and each of the ink blades can be obtained remotely by means of an adjustment mechanism (not shown) in each adjustment device on its ink fountain roller 08. The regulation, and indeed the regulation, results in an area-by-region distribution of the ink drawn from the ink fountain roller 08 . The distribution of the ink volume achieved by the adjustment of the individual ink blades is reflected in the layer thickness corresponding to the adjustment in the relevant area on the outer surface of the ink fountain roller 08 . In this preferred embodiment, the inking unit is therefore designed as a zone inking unit. the

The rollers 03 ; 04 ; 06 ; 08 ; 09 ; 11 ; 12 ; 13 of the inking unit have a length in their respective axial directions in the range of, for example, 500 mm to 2600 mm, in particular in the range of 1400 mm to 2400 mm. The outer diameter of the rollers lies for example in the range of 50 mm to 300 mm, preferably in the range of 80 mm to 250 mm. the

The ink distribution roller 11 has a housing surface that is preferably made of an elastic material, such as rubber. The elastic material of the ink splitting roller 11 can have a layer thickness in the range of 1 mm to 20 mm, preferably in the range of 5 mm to 15 mm. The outer surface of the ink distribution roller 11 is preferably formed from a material having a hardness in the range of 40 to 80 Shore A, in particular in the range of 50 to 60 Shore A, wherein the hardness standard is defined according to DIN 53505 . The higher the hardness value, the greater the hardness of the material applied to the surface of the outer shell of the ink splitting roller 11 in such cases. the

The oil film ink transfer roller 09 has a shell surface with a random structure due to the particularity of its shell surface, wherein the shell surface with a random structure refers to a shell surface that non-uniformly distributes the elements that constitute the surface, and the elements that form the surface Often has a non-uniform shape and also has an indeterminate preferred direction. The housing surface of the ink transfer roller 09 preferably consists of plastic, more preferably of polyacrylate or polyamide, in particular of Rilcan, or in an alternative embodiment also of copper. The shell surface of the oil film ink transfer roller 09 is relatively hard and has a hardness of at least 60 Shore D, preferably above 70 Shore D, especially in the range of 80 to 90 Shore D, wherein the hardness standard Also defined according to DIN 53505. In a preferred embodiment of the oil-film transfer roller 09, the random structure is obtained on its originally flat and uniformly formed outer surface by shot blasting, which is a particularly simple and therefore inexpensive production that is advantageous for the transfer of ink. The oil film is transferred to the surface of the ink roller 09 shell. It should be noted that there is no linear correlation between the two hardness testing methods according to Shore A and according to Shore D. The appendix of DIN 53505 only points out in the form of information that the hardness of 80 Shore A is roughly equivalent to 30 Shore D. Thus, a hardness value of at least 60 Shore D, preferably greater than 70 Shore D, especially 80 to 90 Shore D, represents a relatively very hard surface. the

The shell surfaces of the inking rollers 12; 13 can also be made of plastics, preferably polyamide, especially Lixuan. The outer shell surfaces of the inking rollers 12 ; 13 are each designed to be smooth and have no random structure. The inking rollers 03 ; 04 ; 06 each preferably have a casing surface made of an elastic material, preferably rubber, wherein the hardness of the casing surface according to DIN 53505 is preferably in the range of 35 to 60 Shore A in each case. The outer shell surface of the ink ductor roll 08 , which is preferably immersed in ink, may be steel or a ceramic layer applied to the material making up the core of the ink ductor roll 08 . the

The random structure of the surface of the oil film ink transfer roller 09 is preferably formed by inserting cavities and depressions on the surface of the housing, which constitute structural elements respectively, wherein the cavity and the depressions are formed on the surface of the oil film ink transfer roller 09. The depth in the radial direction can be in the range of, for example, 50 μm to 400 μm, wherein the depth is designed to be different with regard to the structural elements distributed on the outer surface of the oil film transfer roller 09 . The cylindrical surface that actually surrounds the oil film ink transfer roller 09 as a rotating body has roughness, its absolute roughness R _t is in the range of, for example, 100 μm to 120 μm, and its average roughness R _z is in the range of, for example, 60 μm to 80 μm. range, wherein the value can also be obtained, for example, by means of a roughness meter Perthometer (ie a stylus profiler), preferably according to relevant standards, such as DIN EN ISO 4287. The minimum material ratio Mr1 (corresponding to the load ratio of the apex) of the outer surface of the oil film transfer roller 09 from the Abbott-curve according to DIN 4776 lies, for example, in the range of 7% to 13%, preferably in the range of 9% to 11% Inside. According to DIN 4776, the maximum material ratio Mr2 (corresponding to the load ratio of the groove) of the outer surface of the oil film transfer roller 09 obtained from the same Abbott curve lies in the range of, for example, 80% to 95%, preferably in the range of 85% to 90% %In the range.

Each open cavity and/or depression on the surface of the oil film ink transfer roller 09 shell forms an empty surface in view of the cylindrical reference surface (in view of the closed and expected smooth cylindrical surface), wherein the The hollow area corresponds to the opening cross-section of the respective cavity or the respective depression in the plane of the reference plane. The sum of the empty surfaces of all the cavities and/or recesses that exist on the surface of the oil film ink transfer roller 09 shell forms an empty surface ratio with respect to the expected closed cylindrical surface, wherein the empty surface ratio is the largest to 35% of the cylindrical surface, preferably between 20% and 30%. The cavities and/or lower recesses of the oil film ink transfer roller 09 form a void volume according to the size of its respective voids and depths, wherein all existing cavities and And/or the void volume of the depression occupies at least 50,000 mm ³ , preferably at least 100,000 mm ³ , in particular at least 150,000 mm ³ .

Therefore, the cavities and/or depressions arranged on the surface of the oil film ink transfer roller 09 constitute the surface of the oil film ink transfer roller 09 housing with their respective void ratios and respective void volumes and form a contour here. , wherein, the profile can for example be consistent with the rheological behavior of the ink being conveyed, especially with the viscosity and/fluidity of the ink being conveyed, so that during the conveyance of the ink from the ink fountain roller 08 to the ink diverter roller 11, The process of filling and emptying the cavities and/or recesses with the supplied ink and the adhesion of the supplied ink can be optimized according to the rotational speed set on the housing surface of the oil film transfer roller 09, wherein, in the The conveying speed of the printed substrate in a rotary printing press depends on the rotational speed of the ink transfer roller 09 , which can be in the range of 20 m/s, wherein such rotary printing presses are particularly suitable for newspaper printing. The advantageous effect of the cavities and/or depressions introduced in the oil film transfer roller 09 is especially when the transport speed of the printing material printed in the rotary printing press is high (for example, the transport speed is at least 10m/s, especially at 10m/s). /s to 15m/s) is meaningful. The production speed of the printing press can also be specified by the rotational speed of its printing unit cylinders 01; 02, wherein the rotational speed of the rotary printing unit cylinders 01; 02, which are designed, for example, as double-circumferential cylinders, is eg greater than 40,000 revolutions per hour. The double-circumferential cylinder has, along its circumferential direction, 2 cut lengths, which are preferably always of equal length, wherein each cut length corresponds, for example, to the height of a printed newspaper page. The two associated printing unit cylinders 01 ; 02 preferably have numerically equal circumferences. the

In order to make the thickness of the ink coating on the ink distribution roller 11 the same, and to remove the ink that is excessively applied by the ink fountain roller 08 from the outer shell surface of the ink distribution roller 11, the ink distribution roller 11 can be abutted or at least can be abutted against. The other roller 14 is designed as a doctor roller 14 , wherein a doctor blade 16 is arranged against the doctor roller 14 . After splitting the side ink flow C, the scraping roller 14 is placed against the rotation direction of the ink splitting roller 11 . The excess ink scraped off by the doctor roller 14 with its doctor blade 16 is conveyed back, for example, to the ink reservoir 07 , which in FIG. To represent. the

In addition, a bridge roller 17 can be provided, wherein the bridge roller 17 bears simultaneously on an inking roller 03 and on a roller 18 of a dampening device, for example designed as a dampening roller 18 , which is arranged against the plate cylinder 02 , or at least snap to it. The bridge roller 17 can preferably be arranged in contact with an inking roller 03 arranged in the main ink flow B. The bridge rollers again smooth out the main ink flow B of the ink flow A originating from the fountain roller 08 , which is fed to the plate cylinder 02 . The wetting device is preferably designed as a non-contact wetting device for the addition of wetting agent, for example a spray wetting device with a spray column 19, wherein preferably a plurality of nozzles are arranged in the spray column 19 The dampening agent is sprayed onto the roller 21 of the dampening device, which is designed, for example, as a spray roller 21 . The dampening agent sprayed onto the distribution roller 21 is conveyed via another dampening roller 22 , which is designed, for example, as a cross roller 22 , to the dampening roller 18 and from there to the plate cylinder 02 . Via the bridge roller 17, the main ink flow B of the ink flow A from the ink fountain roller 08 that is delivered to the plate cylinder 02 can be extended to the dampening roller 18, which has the advantage that the ink delivered by the main ink flow B Already brought into contact with the dampening agent supplied by the dampening unit in the dampening unit and applied to the plate cylinder 02 together with the dampening agent. In this production condition, the inking roller 03 arranged in the main ink flow B conveys only one partial flow F of the ink conveyed in the main ink flow B directly to the plate cylinder 02 . the

The outer shell surface of the dampening roller 18 is preferably composed of an elastic material (preferably rubber), wherein the hardness of the outer shell surface according to DIN 53505 is preferably in the range of 25 to 30 Shore A, therefore, the outer shell The surface is relatively soft. If the outer shell surface of the spatter roller 22 is made of chrome, the outer shell surface of the water distribution roller 21 is made of a relatively soft elastic material, preferably rubber, the hardness of which according to DIN 53505 is preferably at 25 to 30 Shore A range. If on the contrary, the shell surface of the cross water roller 22 is also made of elastic material, then preferably the shell surface of the cross water roll 22 and the shell surface of the water uniform roller 21 are made of the same elastic material (such as rubber) , wherein the hardness of the two housing surfaces according to DIN 53505 is preferably in the range of 40 to 60 Shore A. Therefore, the surface of the outer shell of the water spreading roller 21 is designed to be harder in the second optional mode than in the first mode. Whether the first option or the second option is used depends on how the rollers 18 ; 21 ; 22 of the dampening device are driven. If the cross water roller 22 has an independent driving device 57, such as a motor 57, its shell surface is made of chromium, and the shell surface of the water even roller 21 that cooperates with the driven cross water roll 22 is made of relatively Soft material is made, and in Fig. 1, independent driving device 57 (motor 57) is represented with dotted line because of its optional. If all rollers 18 ; 21 ; 22 of the dampening unit are driven by friction, ie the dampening unit does not have its own drive 57 , the second alternative mentioned above is used as a preferred embodiment. In the case where the wetting device is driven by friction, the bridge roller 17 can have an independent driving device 56, such as a motor 56, wherein the rotating bridge roller 17 produces a torque on the dampening roller 18 matched with it, and the damping The roller 18 for its part drives the cross roller 22 by friction, which then finally drives the water distribution roller 21 . The cross rollers 22 are preferably designed to be capable of reciprocating movement. The reciprocating lifting motion along the axial direction of the stringing roller 22 can be generated by an independent driving device or the reciprocating motion is coupled with the driving device for the rotating motion of the stringing roller 22, so that the reciprocating lifting motion is derived from the transmission device Rotational movement. the

In Figure 1, the rollers 03; 04; 06; 08; 09; 11; 12; 13; 14 of the inking unit, the bridge roller 17, the roller 18 of the dampening unit; 21; 22 and the printing unit cylinder 01; 02 The direction of rotation of is indicated by its associated arrow. The printing unit cylinders 01 ; 02 are each connected to a drive 51 ; 52 (for example an electric motor 51 ; 52 ), wherein the drives 51 ; 52 are controlled or regulated individually and independently of each other. In the inking unit, only one oscillating roller 12; 13 (or oscillating roller 12 or oscillating roller 13) is driven by a drive device 53; 54 (eg motor 53; 54). According to the preferred embodiment shown in FIG. 1 , the inker roller 12 is driven by a drive and the inker roller 13 has no motor. Other alternatives should be indicated in such a way that only one drive 53 is shown in dashed lines for the inking roller 13 . The other rollers 03; 04; 06; 08; 09; 11; 14 of the inking unit are driven by friction and therefore do not have their own motor drive. In order to realize the replacement of the ink form roller 04 in the middle, the upper ink form roller 13 can turn to one direction by mechanical means to increase the axle distance a13 between it and the plate cylinder 02, so that the middle ink form roller 04 can It is removed from the area between the plate cylinder 02 and the upper inking roller 3 essentially by a vertical upward movement. the

The uppermost inking roller 06 of the inking unit is arranged in such a way that the horizontal tangent T06 placed on the circumference of the inking roller 06 is located at and Where the horizontal tangent T02 on the circumference of the plate cylinder 02 has a vertical distance a06 of at least 50 mm. The vertical distance a06 forms a so-called offset between the uppermost inking roller 06 and the plate cylinder 02 . With this arrangement, sufficient accessibility to the plate cylinder 02 is obtained from the operating end of the printing unit, since all other rollers 03; 04; 08; 09; 11; 12; 13; 14 belonging to the inking unit are also Clearly arranged below a horizontal tangent T06 provided on the circumference of the uppermost ink form roller 06 . The rollers 18 ; 21 ; 22 of the dampening device are arranged substantially below the plate cylinder 02 and likewise do not limit the accessibility to the plate cylinder 02 . Accessibility to the plate cylinder 02 must be provided, for example, to be able to change one or more printing plates on the outer surface of the plate cylinder 02 in the shortest possible time. The printing plate exchange can be performed manually on the plate cylinder 02 by an operator operating the printing press or automatically by means of the plate magazine 58 ( FIG. 8 ), which preferably rests on the plate cylinder 02 tangentially. the

Despite the relatively small number of ink gap positions in the roller train that feeds the ink to the plate cylinder 02, the inking unit shown produces a uniform ink coating on the printing unit cylinder 02, because the rollers are especially required to use Where the ink coating is smooth, ie directly in contact with the cylinder 02 of the printing unit, a plurality of rollers, preferably 3 ink form rollers 03; 04; 06 are arranged. In particular, the proposed inking unit hardly produces stencils due to the special, ie random, surface structure of the housing surface of the oil film transfer roller 09 . As a result, prints of high print quality can be obtained with such an inking unit even in newspaper printing, which properly takes into account the ever-increasing quality requirements in newspaper printing. Even in fast-running printing presses with substrate transport speeds greater than 10 m/s, preferably in the range of 10 m/s to 15 m/s (commonly used in newspaper printing), due to the short roller trains and the use of oil film transmission The ink roller 09 has almost no undesired ink mist effect. The use of an inking unit in a rotary printing press (in particular a newspaper printing press) depicted in FIG. 1 will be further explained in the subsequent figures. the

Figures 2 and 3 show again in schematic form a part of the printing unit described in Figure 1, wherein particular emphasis is placed here on the support of the printing unit cylinder 01; 02 and the ink form rollers 03; 04; 06, The adjustment devices of oil film ink transfer roller 09, ink splitter roller 11, water application roller 18 and water uniform roller 21. 2 and 3 differ from FIG. 1 in that the doctor roller 14 and the bridge roller 17 are omitted for reasons of simplification. The difference between what is shown in FIG. 2 and FIG. 3 is that FIG. 2 shows a first operating state with preferably respectively closed roller rows, that is to say, for example, ink form rollers 03; 04; 06 to plate cylinder 02 and One of the inking rollers 12; In contrast, FIG. 3 shows a second operating state with preferably respectively open roller rows, ie, separated by a gap, that is to say for example ink form rollers 03; 04; 06 and/or water form rollers 18 at least It is separated from the plate cylinder 02. the

All rollers 03; 04; 06; 08; 09; 11; 12; 13; 14 of the inking unit, rollers 18; 21; 22 of the dampening unit, bridge roller 17 and printing unit cylinder 01; In the side frames 47; 48 (FIG. 5) of the printing press arranged at a distance from each other and standing opposite each other, wherein at least the inking rollers 03; 04; 06 and the damping rollers 18, preferably also The oil film transfer roller 09 , the ink distribution roller 11 and the water distribution roller 21 of the wetting device are respectively arranged so as to be able to move up and down along the radial direction. The radial lifting of rollers 03; 04; 06; 09; 11; 18; 03; 04; 06; 09; 11; 18; Eccentric adjustment. The eccentric adjustment of each roller 03; 04; 06; 09; 11; 18; 21 respectively surrounds these rollers 03; 04; 06; 09; 18; 21 is realized by the actuator 23 arranged on each rotating shaft, as shown in Fig. 2 and Fig. 3, wherein preferably the actuator 23 belonging to each identical roller 03; 04; 06; 09; 11; 18; 21 can be independently Operated independently and independently of each other via a control unit and can be adjusted with a defined adjustment path, wherein each actuated actuator 23 is controlled for its associated roller 03; 04; 06; 09; 11; 18 ; 21 produces a radial force, wherein said radial force will roll 03; 04; 06; 09; 11; 18; If multiple actuators 23 arranged at the same end of one of the rollers 03; 04; 06; 09; 11; 18; The radial lift implemented by the rotating shaft is generated by the vector sum of the radial forces of the operated actuators 23. The actuator 23 is pressurized, for example with a pressure agent, preferably pneumatically actuated. The actuators 23 are each arranged, for example, in roller locks which respectively receive one end of the individual rollers 03 ; 04 ; 06 ; 09 ; 11 ; 18 ; 21 . 06; 09; 11; 18; 21, preferably in the range of a few millimeters, for example within 10 mm, which is sufficient for the respective rollers 03; 04; 06; 09; 11; 18; 21 are detached from at least one adjacent cylindrical rotating body (eg plate cylinder 02). In addition, it can also be provided that the pressing force generated by each roller 03; 04; 06; 09; 11; 18; The delivery of ink or dampening agent controlled by the regulating device influences the quality of the printed matter produced in connection with the inking device and/or dampening device. The pressing force is established when there is already contact between each roller 03; 04; 06; 09; 11; 18; force. By further or renewed actuation of one or more actuators 23 the value of the already existing pressing force can be changed (for example also reduced). the

By adjusting the pressing force exerted by one of the rollers 03; 04; 06; 09; 11; 18; 21 on its adjacent rotating body, the roller 03; 04; 06; 09; 11; 18; 21 and the width of the roller belt formed in the contact between the adjacent rotating body is adjusted, wherein the roller belt is regarded as the roller 03; 04; 06; 09; 11; 18; 21 on the shell surface, and Rollers 03; 04; 06; 09; 11; 18; 21 Flattening on the shell surface of the cylindrical rotating body or on both shell surfaces. The width of the roll belt is the chord formed by flattening on the circular section of the roll 03; 04; 06; 09; 11; 18; 21 or the rotating body that cooperates with it. The flattening can be realized based on the elastically deformable shell surface of the ink roller 03; 04; 06; 09; 11; 18; 21 or the rotating body matched with it. The roll belt is also referred to as an embossing station. In the control unit controlling the actuators 23, the data of the respective pressure levels (according to which the actuators 23 are adjusted) can be stored so that for a certain roll 03; 04; 06; 09; 11; 18; 21 by The pressing force resulting from the adjustment of each actuator 23 forms a roller belt with a certain width between its adjacent rotating bodies. the

The printing device cylinder 01; 02 (i.e. the transfer cylinder 01 and the printing plate cylinder 02) are respectively supported in a bearing unit 24 as shown in Figure 2 and Figure 3, wherein preferably each printing device cylinder 01; two ends of 02 The parts are each supported in a bearing unit 24 of this type. The bearing unit 24 provides each printing unit cylinder 01; 02 with a rectilinear adjustment path S, wherein said adjustment path S is preferably arranged horizontally in a printing unit that conveys the printing material substantially vertically. Details of this preferably used bearing unit 24 are shown in FIG. 4 . the

The bearing unit 24 integrates the engagement/disengagement mechanism for each printing unit cylinder 01; In addition to the cylindrical roller bearing 26), there is also a bearing mechanism 27; 28 for the radial movement of each printing unit cylinder 01; In addition, the bearing unit 24 also has, depending on its installation in or on the printing press frame, a bearing element 27 fastened to the frame, fixed to the carrier and, conversely, capable of Moving bearing element 28 . The fixed and movable bearing elements 27 ; 28 on the carrier are designed as mating linear elements 27 ; 28 and together with the corresponding sliding surfaces or the roller elements located between them are designed as a whole as a linear bearing. The linear elements 27 ; 28 support bearing blocks 29 in pairs, which are designed, for example, as a slide block 29 , wherein the bearing blocks 29 support radial bearings 26 . The bearing seat 29 and the displaceable bearing element 28 can also be designed in one piece. The bearing element 27 fixed to the carrier is arranged on a carrier 31 which is connected as a whole to one of the side frames 47 ; 48 ( FIG. 5 ). The carrier 31 is formed, for example, by a support plate which, for example, has a recess at least on the drive side of each printing unit cylinder 01; drive shaft). Likewise, the frame wall at the drive end preferably also has a recess or a perforation for the drive shaft. Recesses or holes do not have to be provided in the side frames 47 ; 48 ( FIG. 5 ) on the end face opposite the drive end. the

The length of the linear bearing, in particular the length of the bearing arrangement 27 of the linear bearing fixed to the frame at least in the installed state, is preferably smaller than the diameter of the associated printing unit cylinder 01 ; 02 as seen in the direction of the adjustment path S. The bearing seat 29 preferably has only a single degree of freedom of movement in the direction of the adjustment path S. FIG. the

The bearing unit 24 that is preferably designed as a combined component that can be installed as a whole is composed of, for example, a carrier body 31 and/or, for example, a frame (without reference numerals in FIG. For example, a housing which can be partly opened is formed. Arranged in the housing or frame is a bearing housing 29 with a radial bearing 26, a linear guide 27; 32 such actuators. The bearing elements 27 fixed to the machine frame are arranged substantially parallel to one another and define the direction of the adjustment path S ( FIG. 4 ). the

By means of an actuator 32 controlled by at least one actuator 32, in particular by at least one force (by means of this actuator 32 a defined force can be applied to the bearing seat 29 in the pressing direction or a defined force F , see FIG. 4) the force F applied to the bearing seat 29, the bearing seat 29 moves toward the direction of the printing position, and the pressure is achieved through this movement. Therefore, the linear force in the individual impression positions, which determines the ink delivery and thus the printing quality, is not defined by the adjustment path, but by the relationship between the force F and the linear force _FL generated between the cylinders 01; 02 of the printing unit. The balance of forces and the resulting balance are specified. According to a first embodiment, not specifically shown, the rollers 06 ; 07 are pressed against each other in pairs by applying a corresponding adjusting force F to the bearing seat 29 by means of one or more actuators 32 . If a plurality (for example 3 or 4) printing unit cylinders 01; Limitations, although a system set up already involving the necessary pressure (linear force) allows disengagement and subsequent correct engagement again, fundamental adjustments are difficult due to partially superimposed reactions. According to an advantageous embodiment, at least the transfer cylinders 01 of the printing unit can therefore be in a set position which is found by means of a balance of forces for the basic adjustment of the system (by means of corresponding linings on the printing unit cylinders 01; 02). Be immobilized or at least restricted in the path of movement.

According to a particularly advantageous embodiment, the bearing seat 29 is (even during operation) displaceably supported at least in the direction away from the printing position against a force, for example an elastic force, in particular a definable force. This (contrary to a pure stroke limitation) on the one hand specifies the maximum linear force when the printing unit cylinder 01; Resupply is realized when taking uncoil (Bahnriss). the

On the side facing the printing position, the bearing unit 24 has (at least during the adjustment process) a position-variable stop 33 which limits the adjustment path towards the printing position. The position of the stop 33 can be changed in that the stop surface 34 serving as a stop can be changed along the adjustment path S at least within a range. Therefore, according to an advantageous configuration, a correction device (adjustable stop 33 ) is provided, by means of which the end position of the bearing seat 29 close to the printing position can be adjusted. A wedge drive, such as that described below, is used for stroke limitation/correction. The stop 33 can be set essentially manually or via an adjusting device 36 designed as an actuator 36 . the

Furthermore, according to an advantageous refinement, fastening or clamping devices (not shown in FIG. 4 ) are provided, by means of which the stop 33 can be fixed in the desired position. In addition, at least one elastically acting element 37 is provided, for example a spring element 37 , which exerts a force _FR from the stop 33 on the bearing seat 29 in a direction away from said force. That is, the spring member 37 causes a depressurization when the bearing seat 29 is not otherwise prevented from moving. The pressing is carried out by moving the bearing seat 29 in the direction of the stop 33 with at least one actuator 32 , in particular a force-controlled actuator 32 , by means of which a predetermined or predeterminable A force F is applied to the bearing seat 29 in the pressing direction. If said force F is greater than the resilience force _FR of the spring element 37, the printing unit cylinder 01; 02 is pressed against the adjacent printing unit cylinder 01; close to the stop 33.

Ideally, the force F that can be applied, the resilient force _FR and the position of the stop 41 are chosen such that substantially no force ΔF is transmitted between the stop 33 and the contact surface of the bearing seat 29 in the set position, For example |ΔF|<0.1*(FF _R ), especially |ΔF|<0.05*(FF _R ), ideally |ΔF|≈0. In this case, the adjusting force between the printing unit cylinders 01 ; 02 is primarily determined by the force F exerted by the actuator 32 . Therefore, the linear force _FL in the individual impression positions, which determines the ink transport and thus the printing quality, is not firstly defined by the adjustment path S, but is determined at the somewhat independent stop 33 by means of the force F and the resulting force balance. Regulation. In principle, it is conceivable to remove the stop 33 or a corresponding fastening device, which is only effective only during the basic adjustment, after the basic setting has been determined by means of a suitable force F.

The actuator 32 can in principle be designed as any actuator 32 that exerts a defined force F. FIG. The actuator 32 is preferably designed as a pressure-actuated adjusting device 32 , in particular as a fluid-displaceable piston 32 . It is advantageous to arrange several, preferably two, actuators 32 of this type in view of the possible inclinations. As fluid, liquids such as oil or water are preferably used due to their incompressibility. the

In order to control the actuator 32 , here in the form of a hydraulic piston 32 , a controllable valve 38 is provided in the bearing unit 24 . The valve 38 is designed, for example, to be electrically controllable and in one position it regulates the hydraulic piston 32 to no pressure or at least to a lower pressure level, while in another position it exerts a determining force F The pressure P. For safety, there is also a leakage pipeline not shown in the figure. the

In order to avoid too long combined pressure/pressure path, also in order to fix the tape winder, the stop 39 that utilizes the variable force limit as the position of the overload prevention device 39 can be set on the side of the bearing seat 29 away from the printing position, A travel limiting device such as a spring member 39, which is decompressed under normal operating conditions, that is to say, the piston 32 is unloaded and/or retracted, although the stop 39 of the bearing seat 29 is used for decompressing, but in the surrounding Resupply from the print position in the event of a belt conveyor or other excessive force and create a larger path. The spring force of the overload protection device 39 is therefore chosen to be greater than the sum of the forces of the spring elements 37 . As a result, only a very short adjustment path, for example 1 mm to 3 mm, can be provided for the pressure-on/off pressure under normal operating conditions. the

The stop 33 is designed in the described embodiment ( FIG. 4 ) as a movable wedge 33 perpendicular to the adjustment path S, wherein, during its movement, the position of the effective contact surfaces 34 is along the adjustment path S Variety. The wedge 33 is supported, for example, on a stop 41 fastened to the carrier. the

The stop 33 designed here as a wedge 33 can be moved by an actuator 36 , for example by a pressure-actuated adjusting device 36 , for example by a pressure-actuated working cylinder with a (double-acting) piston. The piston 36 is moved via a drive link 42 , which is designed, for example, as a piston rod 42 or by an electric motor via a drive link 42 , which is designed as a spindle. The actuator 32 can be designed both double-acting and, as described here, as a one-way actuator which, after activation, works against the return spring 43 . The power of the return spring 43 is chosen to be weak for the above-mentioned reasons (stop 33 with no force as far as possible), so that the wedge 33 is only fixed in its correct position against the force of gravity or vibration. the

In principle, the stop 33 can also be designed in other forms (for example as a slider that can be adjusted and fixed in the adjustment direction, etc.), so that the stop forms an adjustable path for the movement of the bearing seat 29 to the printing position. A contact surface 34 that is variable in the direction of S and can be fixed at least during the adjustment process. According to a design not shown, the stop 33 is adjusted, for example directly parallel to the adjustment direction S, by a drive, for example by a cylinder with a (double-acting) piston actuatable with a pressure medium, or by an electric motor. the

Fig. 5 and Fig. 6 show a printing tower 44 respectively, and described printing tower has a plurality of (for example 8) combination devices as shown in Fig. 1 and Fig. 2 respectively, and described combination device has respectively the printing device of cooperating work Cylinders 01 ; 02 , said printing unit cylinders 01 ; 02 are respectively combined with an inking device and a dampening device arranged on the printing plate cylinder 02 . In FIG. 5, in the first operating state of the printing tower 44, two cooperating printing unit cylinders 01 as shown in FIG. 1 and FIG. 02 with its associated inking unit and dampening unit, wherein the impression position between the transfer cylinders 01 pressed against each other forms the printing position. The printing tower 44 has, for example, two pairs of mutually erected side frames 47; 48 arranged at a certain interval, wherein in FIGS. The rack walls of the rack. In each pair of side frames 47; 48 of the printing tower 44 shown in FIGS. A combination of device cylinders 01 ; 02 with their associated inking devices and dampening devices, wherein, for example, a four-color printing is achieved by means of this device. The printing material (not shown in the figure) (preferably a material strip) is conveyed between the transfer cylinders 01 pressed against each other preferably from bottom to top through the printing tower 44 and can be printed on both sides at the same time. The printing tower 44 shown in Figures 5 and 6 may be an integral part of a newspaper printing press. All printing unit cylinders 01 ; 02 of the printing tower 44 are preferably supported in linearly adjustable bearing units 24 as shown in FIG. 4 . Equally, at least all inking rollers 03; To lift. the

The printing tower 44 is arranged on a bottom plate 46 . It can also be provided that at least one pair of side frames 47 ; 48 can move linearly on the bottom plate 46 . FIG. 5 shows a first operating state of the printing tower 44 , in which two pairs of side frames 47 ; 48 are arranged opposite each other. In this first operating state of the printing tower 44 , the printing press can produce printed matter, for example newspapers. In order to implement manual work on the printing unit, in each printing tower parallel to the axis of the printing unit cylinder 01; 02 and ink roller 03; 04; 06; 08; 09; 11; 12; 13; A preferably height-adjustable platform 49 is provided on the outside of 44 respectively. the

FIG. 6 shows a second operating state of the printing tower 44 shown in FIG. A pair of side frames 47 , considered stationary in the example, move straight forward and are thus separated. By separating the two pairs of side frames 47; 48 from each other, the transfer cylinder 01 is also separated from each other in relation to the printing position. 02 and ink roller 03; 04; 06; 08; 09; 11; 12; 13; 18; A preferably height-adjustable platform 49 is provided in the channel 51 between the two separated pairs of side frames 47; 48 formed by removing the pair of side frames 48 to enable manual operation on the printing unit. the

FIG. 7 also shows the printing tower 44 in the first operating state as shown in FIG. 5 , wherein the transfer cylinders 01 arranged in different side frame pairs 47 ; 48 and forming a common printing position are arranged opposite one another. . In contrast to FIG. 5 , the printing tower 44 shown in FIG. 7 is provided for carrying out a waterless offset printing process without a dampening agent, since the printing tower 44 of FIG. 7 does not have a dampening device. For the sake of simplicity and clarity, the linearly adjustable bearing unit 24 shown in FIG. 4 is not shown in FIG. 7 , in which each printing unit cylinder 01 ; 02 of a printing tower 44 is arranged. For the same reason, the radially liftable configuration of the ink form rollers 03; This has already been explained in connection with FIG. 2 . Likewise, as described in conjunction with FIG. 6 , the pair of side frames 47 ; 48 can be designed to be detachable from one another. the

FIG. 8 shows again the printing tower 44 described in conjunction with FIG. 5 , wherein here a printing forme magazine 58 is respectively assigned to each printing forme cylinder 02 , which is respectively arranged in a preferred tangential direction on the respective printing forme cylinders 02 . The operating status is shown. Each plate magazine 58 has at least one first magazine 59 for delivering at least one new printing plate to the plate cylinder 02 and preferably also has a second magazine 59 for receiving at least one printing plate delivered from the plate cylinder 02. Edition drawer 61. The two forme drawers 59; 61 each define a storage location for at least one printing forme. The magazines 59 ; 61 are each preferably arranged essentially horizontally and arranged one above the other at a certain vertical distance. At the end of the first magazine 59 facing the plate cylinder 02, in order to feed at least one new printing plate to the plate cylinder 02, for example at least one planar side stop 62 which can be diverted to the conveying plate is provided, at which At the side stop 62, the printing plate to be fed to the plate cylinder 02 is conveyed laterally in order to maintain register. In order to fix the printing plate on the outer shell surface of the plate cylinder 02, so that the plate cylinder 02 is provided with a small distance, preferably by means of a remote control device, such as a pneumatically adjustable pressure element 63, such as a rolling element 63, said element is installed. During the plate process, the printing plate transported to the plate cylinder 02 is temporarily fixed. The printing plate magazine 58 can be used to automatically change the printing plates on the individual printing plate cylinders 02 during their operation, so that the adjustment time for changing printed products is considerably shortened compared to a manual printing plate change. The greater this advantage is achieved, the more printing plates are simultaneously exchanged for product changes. Replacing many printing plates at the same time is just in line with the past practice of newspaper printing. If the 8 plate cylinders 02 arranged in the printing tower 44 are each equipped with 6/2 printing plates and all these printing plates must be replaced simultaneously for a product change, a total of 96 printing plates must be changed in the printing tower 44, This can be achieved within 2 minutes with automatic operation. the

Reference sign comparison table

01 printing device cylinder, transfer cylinder

02 printing device cylinder, plate cylinder

03 Inking roller

04 Inking roller

05-

06 Inking roller

07 Ink storage device, ink tank, ink fountain

08 ink fountain roller

09 roller, oil film ink transfer roller

10-

11 rollers, ink split roller

12 rollers, string ink roller

13 rollers, string ink roller

14 rollers, scraping rollers

15-

16 squeegee

17 bridge roller

18 rollers, dampening roller

19 spray column

20-

21 rollers, even water roller

22 rollers, string water rollers

23 Executing agencies

24 bearing unit

25-

26 bearings, radial bearings, cylindrical roller bearings

27 Bearing devices, bearing components

28 Bearing devices, bearing components

29 bearing seat, sliding seat

30-

31 carrier

32 Executing agencies, adjustment devices, pistons, hydraulic pistons

33 stopper, wedge

34 contact surface

35-

36 Executing agencies, regulating devices, pistons

37 Elements acting as springs, spring elements

38 valves

39 stopper, overload safety device

40-

41 stop

42 transmission chain link, piston rod

43 return spring

44 printing tower

45-

46 bottom plate

47 side racks

48 side racks

49 platforms

50-

51 drive device, motor

52 drive device, motor

53 drive device, motor

54 drive device, motor

55-

56 drive device, motor

57 drive device, motor

58 plate warehouse

59 edition drawer

60-

61 drawers

62 stop

63 Compression elements, rolling elements

A ink flow

B main ink flow

C side ink flow

D points ink flow

E ink flow

F points ink flow

S regulation path

a06 spacing

a13 pitch

T02 Tangent

T06 Tangent

Claims (35)

1. an inking device of a rotary printing machine has an oil film ink transfer roller (09), wherein the oil film ink transfer roller (09) has a shell surface with a band structure, it is characterized in that the oil film ink transfer roller (09) ) has a hardness of at least 60 Shore D, wherein the shell surface of the oil film ink transfer roller (09) has a random structure, wherein the random structure is introduced into the oil film ink transfer roller (09) by shot blasting The surface of the shell, wherein the surface of the shell of the oil film ink transfer roller (09) has non-uniformly distributed depressions, the depth of which is in the range of 50 μm to 400 μm, wherein the surface of the oil film ink transfer roller (09) is open The lower concave portion of the oil film transfer roller (09) is expected to form a closed cylindrical surface with a maximum void ratio of 35%. 2. Inking unit according to claim 1, characterized in that the oil film transfer roller (09) has a housing surface made of polyamide or polyacrylate or copper. 3. The inking device according to claim 1, characterized in that, the hardness of the shell surface of the oil film ink transfer roller (09) is greater than 70 Shore D. 4. The inking device according to claim 1, characterized in that, the hardness of the shell surface of the oil film transfer roller (09) is in the range of 80 to 90 Shore D. 5. The inking unit according to claim 1, characterized in that the inking unit has an ink distribution roller (11). 6. The inking device according to claim 1, characterized in that, between the ink fountain roller (08) that acquires ink from the ink storage device (07) and the ink distribution roller (11), only one unique The roller (09), wherein the roller (09) is the oil film ink transfer roller (09). 7. The inking unit according to claim 1, characterized in that the inking unit is arranged against the plate cylinder (02). 8. The inking unit according to claim 7, characterized in that a plurality of inking rollers (03; 04; 06) are provided which are simultaneously in contact with the printing form cylinder (02). 9. The inking unit according to claim 7, characterized in that the inking unit has at least three inking rollers (03; 04; 06). 10. The inking unit according to claim 7, characterized in that the inking unit is designed as a front-loading inking unit. 11. The inking unit according to claim 8, characterized in that the uppermost inking roller (06) in the inking unit is arranged such that it is placed at a level on the circumference of the inking roller (06) The tangent ( T06 ) is located at a vertical distance ( a06 ) of at least 50 mm from a horizontal tangent ( T02 ) placed on the circumference of said plate cylinder ( 02 ). 12. Inking unit according to claim 11, characterized in that all other rollers (03; 04; 08; 09; 11; 12; 13; 14) belonging to the inking unit are arranged on the Below the horizontal tangent (T06) set on the circumference of the uppermost ink form roller (06). 13. The inking unit according to claim 1, characterized in that the inking unit and the dampening unit are assigned to the same plate cylinder (02), wherein all rollers of the dampening unit ( 18; 21; 22) are arranged below said plate cylinder (02). 14. The inking unit according to claim 1, characterized in that the inking unit is assigned to the same plate cylinder (02) as the dampening unit, wherein the feeding unit is designed as a contactless Wetting unit that brings wetting agent to the spreader roller (21). 15. The inking unit according to claim 1, characterized in that the inking unit and the dampening unit are assigned to the same plate cylinder (02), wherein all rollers (18) of the dampening unit ;21;22) Driven by friction. 16. as the described inking device of claim 1,5 or 8, it is characterized in that, at least said oil film ink transfer roller (09) and/or said ink splitting roller (11) and/or said ink form roller ( 03; 04; 06) are respectively radially liftable, wherein the radial lift of the rollers (03; 04; 06; 09; 11) involves that the rollers (03; 04; 06; 09; 11) or the end of at least one of said rollers (03; 04; 06; 09; 11) with respect to the support fixed on the machine frame subordinate to each roller (03; 04; 06; 09; 11) The point can be adjusted eccentrically. 17. The inking device according to claim 5, characterized in that, the ink splitting roller (11) divides the ink flow (A) originating from the ink fountain roller (08) into main ink flow (B) and side ink flow (B) flow (C). 18. Inking unit according to claim 17, characterized in that two inking rollers (04; 06) are arranged in the side ink flow (C), wherein the inking rollers (04; 06) The side ink flow (C) is divided into sub-ink flows (D; E). 19. The inking unit according to claim 5, characterized in that the ink splitting roller (11) is arranged against two inking rollers (12; 13). 20. Inking unit according to claim 5, characterized in that inking rollers (12; 13) are respectively arranged in the main ink flow (B) and in the side ink flow (C). 21. The inking device according to claim 19 or 20, characterized in that, one of the two ink rollers (12; 13) is driven by a driving device (53; 54), the The driving device (53; 54) is independent of the driving device (51; 52) of the printing plate cylinder (02) or the driving device (51) of the transfer cylinder (01) matched with the printing plate cylinder (02); 52). 22. The inking unit as claimed in claim 19 or 20, characterized in that at least one of the inking rollers (12; 13) has a housing surface made of copper or of Lexan. 23. The inking device according to claim 5, characterized in that, a scraping roller (14) is arranged against the ink diverting roller (11), wherein a scraping roller (14) is arranged against the scraping roller (14). Ink knife (16). 24. The inking unit according to claim 23, characterized in that the doctor roller (14) arranged against the ink distribution roller (11) is arranged to rotate when the ink distribution roller (11) Position where the side ink flow (C) is diverted from the opposite direction. 25. Inking unit according to claim 5, characterized in that the ink distribution roller (11) has a housing surface made of elastic material. 26. Inking unit according to claim 5, characterized in that the ink distribution roller (11) has a shell surface with a hardness in the range of 50 to 80 Shore A. 27. The inking device according to claim 7, characterized in that, the two ends of the printing plate cylinder (02) or the transfer cylinder (01) matched with the printing plate cylinder (02) The parts are respectively supported in a bearing unit (24), wherein said bearing unit (24) allows each said roller (01; 02) to establish a rectilinear adjustment path (S), wherein said adjustment path (S) is substantially the same as that established by said The printing material printed by the transfer cylinder (01) is arranged vertically. 28. The inking device according to claim 6, characterized in that an ink blade for distributing the ink obtained from the ink storage device (07) by area is arranged at the ink fountain roller (08). 29. The inking unit according to claim 1, characterized in that bridge rollers (17) are provided, wherein the bridge rollers (17) are inked simultaneously against one of the inking rollers (03; 04; 06) A roller and a roller (18; 21; 22) of the dampening device which can be arranged against the plate cylinder (02) are arranged. 30. Inking unit according to claim 29, characterized in that the bridge roller (17) is arranged against an inking roller (03) arranged in the main ink flow (B). 31. Inking unit according to claim 29, characterized in that the bridge roller (17) is arranged against a dampening roller (18) of the dampening unit. 32. The inking unit according to claim 7, characterized in that the plate cylinder (02) is used for printing a printing material which is moved through a rotary printing press at a transport speed of more than 10 m/s. 33. The inking unit of claim 1, wherein the rotary printing press with the inking unit prints substrates in a wet lithographic process. 34. The inking unit according to claim 1, characterized in that the rotary printing press with the inking unit is designed as a newspaper printing press. 35. The inking unit of claim 2, wherein the polyamide is reinforced with glass fibers.

Images